... service after sale good quality material, beautiful appearace 50 watt poly-crystalline solar module pv solar module ... Shape(Customized)Transparency5%,10%,20%,25%,30%,35%,40%,50%,60%Efficiency of Module150Wim2 (5% Transparency)140W/m2 ... (35% Transparency)90W/m2 (40% Transparency)80W/m2 (50% Transparency)Technical Standard ItemDiscriptionMax System Votlage1000VDCStandardsIEC61215, IEC61730, GB/T9535 ...